Six air-quality monitoring stations will start operation in January 2012 to keep records of the levels of air pollution in different parts of the country under the Clean Air and Sustainable Environment project.

Construction work of the stations in Dhaka, Chittagong, Sylhet, Barisal, Narayanganj and Gazipur are in full swing, officials at the department of environment said adding that the project would cost Tk 12 crore.